Question

Find the Value of polynomial P(x) = 2 + x + 2x²=X"at x = 2​

Answer 1

Step-by-step explanation:

Given:-

$p(x) = 2 + x + {2x}^{2} - x$

to find:-

$p( - 2)$

solution:-

$p( - 2) = 2 + ( - 2) + {2( - 2)}^{2} - ( - 2) \\ = 2 - 2 + 2 \times 4 - ( - 2) \\ = 0 + 8 = - 2 \\ 8 - (- 2) \\ = 8 + 2 \\ = 10$